Grenzo, Outstanding Thief

Whenever a goblin you control deals combat
damage to a player, choose one —
• Exile the top card of that player's library.
For as long as it remains exiled, you may cast
that card and you may spend mana as though
it were mana of any color to cast that spell.
• Create a 1/1 red Goblin creature token.
• Tap target land an opponent controls.
"You burn. I'll pillage."